MS-DOS 7.00 is a build of MS-DOS 7.x. It is included as part of Windows 95 and is not available as a standalone product. MS-DOS 7.x was originally a separate project, but later combined with the Chicago project to act as the basis for booting and running real-mode applications under Windows. Some features added (as needed by Windows 95) are VFAT (long file name) support and CD-ROM boot support.
Although MS-DOS 7.00 is a part of Windows 95, it is possible to boot it separately with software modifications.